User Guide

Chapter 5: Connecting Your Studio 47
Line Level Devices Plug line-level sources (such
as a synthesizer, or a microphone or guitar that
has been amplified by an outboard preamp) into
any of the 1/4-inch analog inputs on the back of
the Digi 002.
■ For Inputs 1–4, press the Mic/Line/Instrument
Selector switch (located on the top panel of
Digi 002) for the corresponding input so that it
is in the “Line/Inst” position. Inputs 1–4 are de-
signed for input signals with a nominal operat-
ing level of +4 dBu. (The Input gain knob should
be turned down all the way for +4 dBu devices at
unity gain.)
■ For Inputs 5–8, choose either a –10 dBV or
+4 dBu operating level for the corresponding in-
put using the switch on the Digi 002 back panel.
For information on the appropriate operating
level for your input device, refer to the manufac-
turer’s specifications.
Digital Audio Connections
Digi 002 provides up to 10 digital inputs and
outputs, including:
• Optical input and output for eight channels
of ADAT input or two channels of Optical
S/PDIF input
• Two channels of S/PDIF digital input and out-
put (RCA connectors)
ADAT Format
The ADAT format was developed by Alesis for
use in their ADAT multitrack recorders. Each
ADAT optical connection provides eight chan-
nels of digital audio with 24-bit capability. You
can connect an ADAT or other ADAT optical for-
mat device directly to the Optical I/O on the
Digi 002 (see “Connecting an ADAT to
Digi 002” on page 50). The optical I/O connec-
tors accept optical cables.
When set for ADAT format, these Optical ports
support 44.1 kHz or 48 kHz sample rates only.
S/PDIF
S/PDIF (Sony/Phillips Digital Interchange For-
mat) I/O is available on many DAT decks, com-
pact disc players, and other digital devices. Each
S/PDIF connection provides 2 channels of digi-
tal audio with 24-bit capability. You can connect
a S/PDIF digital input to either the Optical con-
nector or to the S/PDIF RCA connector on the
back panel of the Digi 002 (see “Connecting a
Digital Deck (DAT)” on page 50). The Optical
connectors accept standard optical “lightpipe”
cables; the RCA connectors accept standard RCA
cables.
Both the RCA and Optical ports accept S/PDIF
signals at sample rates up to 96 kHz.
Digital connectors (back panel)
Only one S/PDIF input pair can be used at a
time. For example, if you use the optical in-
put for S/PDIF data, you cannot use the
RCA inputs.
S / PDIF
IN
OUT
OPTICAL
MIDI OUT 1MIDI OUT 2
IN
OUT
964530300294856
SERIAL NUMBER
RCA S/PDIF
Input and
Optical
Input and Output ports
Output